28888200 has 144 divisors (see below), whose sum is σ = 105908400. Its totient is φ = 6998400.

The previous prime is 28888199. The next prime is 28888201. The reversal of 28888200 is 288882.

It is an interprime number because it is at equal distance from previous prime (28888199) and next prime (28888201).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28888201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19071 + ... + 20529.

It is an arithmetic number, because the mean of its divisors is an integer number (735475).

Almost surely, 2^28888200 is an apocalyptic number.

28888200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28888200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52954200).

28888200 is an abundant number, since it is smaller than the sum of its proper divisors (77020200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28888200 is a wasteful number, since it uses less digits than its factorization.

28888200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 28888200 is about 5374.7744138708. The cubic root of 28888200 is about 306.8363637560.

Multiplying 28888200 by its reverse (288882), we get a square (8345280992400 = 2888820²).

28888200 divided by its reverse (288882) gives a square (100 = 10²).

It can be divided in two parts, 288 and 88200, that multiplied together give a square (25401600 = 5040²).

The spelling of 28888200 in words is "twenty-eight million, eight hundred eighty-eight thousand, two hundred".